Mechanism for evening fibrous slivers.



A. BIRCH & W. HAMBR.

MBCHANISM ron EVENING FIBRoUs sumas.

APPLICATION FILED NOV.18, 1911. BENBWED MAY 8,1914.

Patented Sept. 22, 1914.

i TUN ALBERT BIRCH AND vs'An'iEn` HAMER, or 'BonroNgnNon-Aivii, ASSIGNons, BY `Dinner r vAND MnsNn LAND.

ASSIGNMENTS, 'ro DonsoN AND BARLOW Lrivrirnn, or isoL'roN, ENG- j iuEcHANIsM roanvnNiNG mignons sniviins.' H A i i 4Specification of Letterstratent.

Appiicafiqn mea November is, 191i, serial No. seneca. Renewed; ivrayjs,` i914. yseiiaiNt, ,$37,293.

To illlwhomet may concern ,j

Beit known that we, ALBERT. Biizori' and y WALTER HAMER, subjects of the` King vof 'Grreat Britain, and residentsrespectively,

of 684i Blackburn Toad, Bolton, in" the county of Lancaster, England, and The \Willow`s,. Sharples' Park, Astley Bridge,

Bolton aforesaid, have 4invented a `:new and f Y useful Improvement in Mechanism` for Evening Fibrous iSlivers, of which the following description, `which has .referenceuto the .accompanying sheets ofgdrawings, `isa specification.

vIn the production `of yarns or threads ofi fibrous Substances' it `is desirable'fthat the slivers, or those thick threads from which the finer threads are subsequentlyfproduce'd, shouldbe as even in thickness orweight as a possible.` l 2o Theobject ofthisinvention is to provide improved4 mechanism whereby thepull or force acting upon the sliver being treated, or the Weight of a given `length ofsuch sliver, lwill have the effect of controlling the devices which guide it so that itisnconducted to one part or anotherof front or receiving rollers, to be drawn or acted-upon by corresponding portions of conical draw` ing ',rollers. l.

"of exceedingly simple y devices hereinafter described with reference to the accompanyf.

yThis object'we attain bythe employment ing sheets of drawings wherein-v Iof the` parts shown by Fig. 1, with the cover 4A removed. Fig. 3 4is a sectionalele-yv r a vation `of the parts Shown by' Fig. l, as seen V iii the -direction indicated by the ,arrow` a.

sliver b which has to be-treated or made even, is conducted through a guide c which vFigure 1 is a sectional end elevation of themechanismiwe employ. Fig. `2 is aplan In carrying our invention into effect the is `mounted upon a counterbalanced lever 2 so fthat Lit may deliver the sliver f passing through it to a pair of-rollers 3, 3a, which rotateat agregula'r speed as driven by or through any prime motor part'of. the machine, as for example, a motor-shaft 4 of the machine to which ourimproved parts have been applied, whichshaft transmits its motion to the rollers 13, 3, by the bevel wheel 5 fixed uponit,` gearing with thewheel 6 fixed upon the shaft 7 so that this shaft :7

may, by the wheel `8 secured to it, rotate" the v wheel 9 which transmits `motion to 1 they `(see igLiQi ",onithe shaft of'` the 1 roller V3,While thesaid wheel 10 meshes with a wheel. 11 on the shaft of the roller 3a. Ben neath theI rollers3, 3, are mounted-another Vpa'ircf` rollers 12j, 12a Theserollers l2, 12a.. are' of conical shape and are arranged to be pressedjtogether solastov rotate inqcontact to. l

with eachother asfdogtherollers 3, 3F. The

' forcing'fofthese rollers 3, 3%, `and 12, 121.to`

gether is effected by any well lknown means as 'for example, by the flatspring 13 press# t ing upon the spanning piece 14.

.The conical rollers 12, 12a rotate in unison by--being geared together by 4pinions carried on their shafts and at their ends which are ofsmaller diameter. `One of these pinions gears with the wheel 9 which isthus arranged to transmit motion to *said rollers .12, 12a, andgthat at suchr a: rate thatV the surface speed at the smaller ends of these rollers is approximately equal4 to.l or slightly in excess of that'of the rollers 3,- 3a, lwhile said'surface speed of the rollers 12, 12a will gradually increase in proportion. to their'` increasing diameters until their larger ends are vreachedg; j j

understood that as the sliver' b isA deliveredto the pair of rollers 3, 3a, these latter carry it forward to the rollers 12, ,12a vand that when said sliver is delivered ata part of the rollers 3, 3a, which approaches or is in proximity to a position opposite the ysmaller ends .From the foregoing it will of said rollers 12, 12a saidsliver will be less` `drawn out or attenuated than it will be -whensupplied to theparts of. the rollers 3, 3a, nearer the larger ends. of the rollers 12,

12a. We makeluse of the `devices herein# after described to automaticallyl effect this .5A

adjustment of thefposition of feed of the sliver b to the rollers 3, 3a inexact accord` ance with the thickness (or weight of a` given length) of said sliver, 'so that as Said thickness is increased its passage'between .A

the rollers 12, 12L will be regulated to enable said rollers to deliver a sliverl ofthe same thickness throughout. To attain thisresult it may here be observed that thevsliver maybe said to have afdoublev movement tran`smitted to it in addition to` its longitudinal "motion, viz: one movement ini lthe `direction -of the pull thereon and -another movement carrying it lengthwise the drawing rollers. The lever 2 has a counterbalancing weight 2&1 and an arm 25 which are preferablyarsol ranged in the relative positions shown, al-

' though other forms and arrangements vmay f be made use of. yThe arm 25 is fixed to the lever 2 and made to extend below thecenter.

of oscillation w so astobring a portion of the counterbalancing weight for said lever 2v` into `a position to secure steadiness of m05 tion. In this arrangement the pull of. the sliver on the funnel 'ccausesl they lever -2 to oscillate about its center w and move Atoward the larger ends of the rollersv l2, 12,while f when said pull on the sliverfor the weight pairs of. rollers arrangedas hereinbeforede- Copies of this patent may be obtained-fr ve" cents each, adniressngi'tl'ief Commissioner' of `1"ate`nts', i

Washington, D.{G.

scribed,`the `tunnel 30 (which is mounted` Vitisdelivered from one part or' another ofj the rollers 12, 12a.

Such being. the nature and object of our invention, what we'claim is 1.v Mechanism for evening vfibrous slivers, i 36 compris-ing drawing rolls including a pair of co-acting tapering or conical rolls,- means for actuating said rollscontinuously at the same rate of'speechr a sliver guide, and means or'automaticalfly shifting said guidev in a direction substantially parallel-to the nip Inr mak-ing use of the two of the rolls under the influence of variations in the thickness of the sliver to direct thicker portions tothe largerjends of the rolls and' smaller portionsV to thelesser ends fofV the rolls.

2. Mechanism for evening fibrous slivers,

comprising drawing rolls including a pair substantially in the plane of the nip of therolls, and a sliverguide directly carried' byV said lever to move in-thesame planetherewitlif, said; lever having a* counterbalancing devicve tending to move the-guide toward the smaller ends Yof the rolls?.

3. `Mechanism for evening'- fibrous slivers,

conipris'ing drawing rolls including a pairl of coeacting" tapering or conical rolls,v means lfor actuating saidL rolls continuously at the same rate of speed, al lever pivoted to swing substantially inthe plane of the niprof the rolls, and a sliver guidefdirectl'y carried by' with, saidliever having a 'counterbalance f weight 24 and a pendant arm* 25 for the' pur# pose described.

In testimony whereof we have :aiixed our signatures in presencev of two witnesses. *f i.

. ALBERTv BIRCH:

llVitnesses: v JOHN WHITEHEAD,

'ERNOLD' SIMPSON MosELEY.

said lever to'move in the same plane'there-k l WALTER HAMER. 

